[XFS] Fix a writepage regression where we accidentally stopped honouring
nonblock mode with the new IO path code (since 2.6.16).
SGI-PV: 951662
SGI-Modid: xfs-linux-melb:xfs-kern:25676a
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 6cbbd16..4d191ef 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -870,12 +870,14 @@
pgoff_t end_index, last_index, tlast;
ssize_t size, len;
int flags, err, iomap_valid = 0, uptodate = 1;
- int page_dirty, count = 0, trylock_flag = 0;
+ int page_dirty, count = 0;
+ int trylock = 0;
int all_bh = unmapped;
- /* wait for other IO threads? */
- if (startio && (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking))
- trylock_flag |= BMAPI_TRYLOCK;
+ if (startio) {
+ if (wbc->sync_mode == WB_SYNC_NONE && wbc->nonblocking)
+ trylock |= BMAPI_TRYLOCK;
+ }
/* Is this page beyond the end of the file? */
offset = i_size_read(inode);
@@ -956,15 +958,13 @@
if (buffer_unwritten(bh)) {
type = IOMAP_UNWRITTEN;
- flags = BMAPI_WRITE|BMAPI_IGNSTATE;
+ flags = BMAPI_WRITE | BMAPI_IGNSTATE;
} else if (buffer_delay(bh)) {
type = IOMAP_DELAY;
- flags = BMAPI_ALLOCATE;
- if (!startio)
- flags |= trylock_flag;
+ flags = BMAPI_ALLOCATE | trylock;
} else {
type = IOMAP_NEW;
- flags = BMAPI_WRITE|BMAPI_MMAP;
+ flags = BMAPI_WRITE | BMAPI_MMAP;
}
if (!iomap_valid) {